AD7745 Datasheet 24-Bit Capacitance-to-Digital Converter

Manufacturer: Analog Devices

Datasheet Details

Part number	AD7745
Manufacturer	Analog Devices
File Size	529.42 KB
Description	24-Bit Capacitance-to-Digital Converter
Download	AD7745 Download (PDF)

The AD7745/AD7746 are a high resolution, Σ-Δ capacitance-todigital converter (CDC).

The capacitance to be measured is connected directly to the device inputs.

The architecture

www.DataSheet4U.com 24-Bit Capacitance-to-Digital Converter with Temperature Sensor.

Capacitance-to-digital converter New standard in single chip solutions Interfaces to single or differential floating sensors Resolution down to 4 aF (that is, up to 21 ENOB) Accuracy: 4 fF Linearity: 0.01% Common-mode (not changing) capacitance up to 17 pF Full-scale (changing) capacitance range: ±4 pF Tolerant of parasitic capacitance to ground up to 60 pF Update rate: 10 Hz to 90 Hz Simultaneous 50 Hz and 60 Hz rejection at 16 Hz Temperature sensor on-chip Resolution: 0.1°C, accuracy: ±2°C Vol.

Part Number	Description
AD7740	Synchronous Voltage-to-Frequency Converter
AD7741	Single and Multichannel/ Synchronous Voltage-to-Frequency Converters
AD7742	Single and Multichannel/ Synchronous Voltage-to-Frequency Converters
AD7746	24-Bit Capacitance-to-Digital Converter
AD7747	24-Bit Capacitance-to-Digital Converter
AD774B	Complete 12-Bit A/D Converters
AD7701	16-Bit A/D Converter
AD7703	20-Bit A/D Converter
AD7705	Sigma-Delta ADCs
AD7706	Sigma-Delta ADCs